Great Britain struck double sailing gold on day 11 of the Tokyo Olympics.

Great Britain's Dylan Fletcher and Stuart Bithell won the men's 49er and Giles Scott swiftly followed that up with victory in the men's Finn.

Pat McCormack is guaranteed a spot on the podium ahead of his welterweight final, Laura and Jason Kenny are in action in the cycling and Jack Laugher and James Heatly go in the men's 3m springboard final.

World champion gymnast Joe Fraser will be eyeing his first Olympic medal and Simone Biles is set to make her competitive return to action later on Tuesday.

Here, the PA news agency breaks down everything you need to know about Tuesday's action.

What's happened so far?

Fletcher and Bithell went into the final medal race, where double points are awarded, in second, four points behind New Zealand's Peter Burling and Blair Tuke, but victory for the Britons saw them claim the title. It is a first Olympic medal for Fletcher, who finished sixth with Alain Sign in the same class in Rio, while Bithell also took silver in the 470 class alongside Luke Patience at London 2012.

Scott made it two golds for Britain in an hour in the Finn class. He had a nine-point lead going into the final medal race but had to play catch-up after a poor start and crossed the line in fourth, which was just enough to keep him ahead of Hungary's Zsombor Berecz. It is Britain's sixth successive title in the boat dating back to Iain Percy's success in Sydney 21 years ago.

Ed Clancy announced his withdrawal from Great Britain's men's team pursuit competition and his retirement from the GB cycling team due to an ongoing back and sciatica problem.

Adam Gemili's hopes of lifting Team GB after a nightmare start to the track for several of their athletes were dashed as he pulled up with a hamstring injury in his 200 metres heat.

Norway's Karsten Warholm shattered his own world record to win the men's 400m hurdles, clocking 45.94 seconds, shaving almost a second off his previous world best of 46.70secs he set in Oslo at the start of July.

Jazmin Sawyers and Abigail Irozuru missed out on the medals in the long jump final as Germany's Malaika Mihambo took gold. Sawyers finished eighth with a best jump of 6.80m while Irozuru came 11th with 6.51m.

London boxer Caroline Dubois has missed out on a medal, suffering a split decision defeat in her women's lightweight quarter-final against Thailand's Sudaporn Seesondee.

What's still to come?

Biles, who has not competed since she withdrew early in the women's team final last week, citing a desire to protect her mental health, is scheduled to feature in the beam final at around 0950.

The American has been named as the third of eight starters in the beam final, for which she qualified in seventh place last Sunday. Britain's Fraser, meanwhile, competes in the parallel bars at 0900.

Laura Kenny, along with Katie Archibald, Elinor Barker and Josie Knight, will be gunning for a medal in the women's team pursuit while husband Jason is in action in the men's team sprint, with Ryan Owens and Jack Carlin.

Pat McCormack can win Britain's first boxing gold of these Games as he takes on Cuba's Roniel Iglesias in their 69kg final at 1105.

Jack Laugher will be seeking to make up for his seventh-place finish in the synchronised 3m springboard as he competes in the individual event, where he won silver at Rio 2016.

Jamaica's Elaine Thompson-Herah can complete a sprint double when she competes in the women's 200m final, having already claimed gold over half the distance.

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